Pressing machine



Jan. 21, 1930. B. w. BROCKETT 1,744,441 I PRESSING MACHINE Filgd Aug.51, 1925 5 Sheets-Sheet l HEAVY D 21, 1930. B. w. aRocKETT 1,744,441PRESSING MAc'HmE Filed Aug 31. i925 5 Sheets-Sheet. 2

Jim. 21, 1930.

B. 'w.- BROCKETT mns'sme momma! 5 Sheets-Sheet 3.

FileQ. Aug. 31, 1925 Jan. 21, 1930. B. w. RocKETT PRESSING MACHINE FiledAug. 51, 1925 5 Sheets-Sheet 4 gwue'ntoz Jan. 21, 1930. a. w. BROCKETTPRESSING MACHINE Filed Aug. 31,1925

5 Sheets-Shem 5 "-if'y'Y "x Patented Jan. 21, 1930 UNITED STATES PATENT,OFFICE BLUFORD W. BROCKETT, OF CLEVELAND HEIGHTS, OHIO, ASSIGNOR, BYDIRECT AND MESNE ASSIGNMENTS, OF ONE-HALF TO THE AMERICAN LAUNDRYMACHINERY COMPANY, OF- NORWOOD, OHIO, A CORPORATION OF OHIO; ANDONE-HALF TO UNITED STATES ZEIOFZIEIIIIAILYI MACHINERY CORPORATION, OFNEW YORK, N. Y., A

CORPORATION OF DELAWARE rnussme MACHINE H Application filed August 31,1925. Serial No. 53,544.

This invention relates to platen type presses used in pressing garmentseither in the laundry or the garment pressing trade.

Heretofore presses for these fields have been substantially of one orthe other of two types. One type is what might be termed the automaticpress where the controller, when actuated, starts the mechanism drivenby motor means for closing the press and applying final pressure andthereafter when again operated opens the press. The other type is 'onewhere the head is closed by hand upon the work and power is afterwardsapplied either automatically or by will of the operator control. Byreason of the wide opening of the head and bed and the necessity todirect and hold some lays of the garment upon the bed, the .first typeof machine is extremely dangerous, clumsy and ineflicient becaus intwenty-five'per cent of the operations the operators hands are upon thebed as the press closes and injury to the operator results or a poorpressing operation is produced, the latter requiring an additionalpressing operation to cure the previous im perfect performance.

In order to protect the operator and improve the efl'iciency of themachine, of the first type, guards and safety devices have been providedbut in all such arrangements the construction has been such thatthe'operator cannot hold or conduct the ,difiicult lays at the time ofclosing of'the press with the result that the article falls away orbecomes disturbed before the pressing operation, requiring furthertreatment. These presses are effective for a large proportion of theoperations but the balance is very troublesome and cannot be taken careof by a press of this type.

The other type, which is hand closed, is far more effective so far asenabling the operator to dispose of the diflicult lays, but it possessesanother disadvantage in that it requires the attention of the operatoruntil the press is closed before final pressure is applied.

Summing up the foregoing disadvantages the obvious conclusion is that anideal press would be one which would close automatically after beingtripped 0E and apply and hold the final pressure until released with theclosing feature arranged in a manner such that on the difiicult lays theoperator could feel that the press could not harm her and that she couldinterrupt and maglually hold back the closing to the extent of allowingthe head to grasp the. material as she had arranged it and as sheretired her hand-from it with power coming on automatically thereafterto complete the pressing operation. A press of this type would possessthe desirable speed for the major portion of the operations which couldbe automatic and at the same time would lend itself to the manualmanipulation necessary to meet the demands of the operator in handlingthe smaller in number, but yet important lays which cause the troubleand loss of time.

The present invention therefore contemplates a press of the wide openinghead and bed type with power means for exerting final pressure and witha head and-support therefor arranged in a manner such that when thepress is openthe head is latched in such position against a normaltendency to close by gravity. A controlling mechanism is provided forthe press and is arranged in a manner such that when the head and 'itssupport are released to close by gravity, the pressure releasing circuitis open and when the head engages the work, or is in a safe position,another controller or switch is closed, initiating the power operationwhich results in power being applied to the press and held until thecontroller has been again actuated, which operation closes the pressurereleasing circuit previously opened thereby producing the opening of thepress. The operation of creating the final pressure upon the work alsoserves to latch the head support to the power mechanism so that when thepress opens, the head, beinglatched to this mechanism, remains openuntil released.

To improve the facilities for performing the difiicult lays, the headmay be swivelled to its support and weighted or otherwisecounter-balanced by a spring so that it is out of perfect matching ornesting relation with respect to the bed, or in other words, so that itssurface. This arrangement assist-s the operator in the diflicult lays inthe fact that the material would be grasped before the head had settledupon the bed and produced the power operation, thus expediting thedilficult ays and also preventing injury to the operator.

Other eatures of the invention. will be brought 0 t in connection withthe following description, drawings and claims.

Referring to the drawings, Fig. 1 is a side elevation of the machineshown in open position with parts in section; Fig. 2 is a side elevations owing the head nearly closed before. the power mechanism is set inoperation, with parts in section; i 3 is a section on the line 33 ofFig. 1; view of the release controller; Fig. 5 is a section upon theline 55 of Fig. 4; Fig. 6 is a sectional view partly in elevation of thepower pressure controller; Fig. 7 is a section upon the line 77 of Fig.6; Fig. 8 is a view partly in section showing the commutator .or timer;Fig. 9 is a view partly in elevation and partly in section showin thetimer in another position Fig. 10 (gheet 2) is a schematic wiringdiagram; and Fig. 11 shows the press provided with a guard.

In the drawings, 1 represents a standard or frame provided with arearwardly and upwardly extending hand lever supporting arm 2 adapted toreceive the head lever pivot shaft 3. Pivoted upon this shaft is thehead lever comprising the rear arm 4 provided with a tail 5 forreceiving the counter balancing weight 6 adjustably held upon said tailby a set screw 7 and a forwardly extending arm 8 provided witha headpivot shaft 9 of triangular cross section, as shown. This forwardportion 8 is usually in two spaced parts common to this type of machineand each side portion is extended out to receive a handle 10. Beyond thepivot 9 the side portions 8 are connected by a cross piece 11 providedwith a spring adjusting screw 12. Pivoted loosely upon the head pivotshaft 9 by means of ears 13 is the heated head 14. This head isprovided. with an upwardly extending stop 15 engaging a correspondingstop 16 arranged upon the forward portion 8 of the head lev'er. Thesestops are normally held in engagement by a spring 17 arranged betweenscrew 12 and a suitable centering device 18 on the head forward of theears 13. The arrangement of the stops 15 and 16 and the spring 17 issuch that the head is tilted slightly out of its proper matching ornesting relation with respect to the bed to be described, as shown inFig. 2. In other words, the front edge of the head is tilted down sothat it will engage the front edge of the bed, as will appear.

Rising upwardly from the frame or standard 1 is a bed or buck support 19provided ig. 4 is a sectional with the usual padded bed 20 which is ofarea and shape corresponding to the head 14. It is good practice to havethe meeting face of the head and bed in substantially a horizontalwithout any considerable sliding of one upon the other.

' I prefer to have the weight of the forward 1 portion of the head andits lever greater than the rear portion and its counter balanced weight6 so that there is a tendency for the head to gravitate toward the workupon the bed,- and in order to regulate the speed of travel of the headtoward the bed I utilize any suitable retarding device such as agovernor, which may be in the form of a cylinder and piston structurecomprising a cylinder 21 provided with an ear 22 secured to a pin 23 inan ear 24 forming a part of the frame member 2. This cylinder isprovided upon one side with a hol ow channel member 25 communicating at26 with the top of the cylinder and the-bottom at 27. At the opening 26a suitable bleed valve28 is provided and this valve is adapted toregulate the flow of fluid from the top to the bottom of the cylinder.Slida- 'bly mounted within the cylinder 21 is a piston 29 provided withsuitable ports 30 through it. This piston is rigidly secured to thelower end of the piston rod 31 which passes through a suitable stufiingbox 32 at the top and is connected to a clevis 33 pivoted to a pin 34mounted in an ear 35 forming a part of the rear portion 4 of the headlever. mounted upon the piston rod with limited movement above thepiston is an annular valve 36 adapted to lap and close the ports 30 whenthe piston moves upward, or, in other words, when the head and headlever move toward pressing position. This cylinder and piston structurethereafter serves as a governor to control the downward movement of thehead and the speed of closing may be obviously varied at will by themanipulation of the valve 28.

It is obvious from the foregoing description that with the mechanism asalready described the head would have a normal tendency to move towardthe bed, and, with the front edge of the head tilted, such edge wouldengage the ironing surface of the bed in advance of the remainingportion of the ironing face of the head, but continued settling of thehead takes place until the head and bed meet in matched ironingrelation. It is also obvious that the head does not-have a tendency toopen and that some means must be employed to open it. 7

The power means for exerting final pressure and for opening the headcomprises motor means in the form of an electric motor 37 mounted pon asuit b e bracket 38 secured Slidably I cap screws 77.

a latch having a latching to the frame and having its shaft 39 enteringa reducing gear casing 40, where it is provided with a worm 41 meshingwith a worm wheel 42 mounted upon the main crank shaft '43 extendingthrough the frame and provided with a crank 44 within the frame. Thisshaft also extends out beyond the opposite side of the frame Where it isprovided with a timing device to be described; Connected to the crank 44is a connecting rod 45 pivoted to a pin 46 arranged in a double togglelink comprising thelinks 47 pivoted at 48 to the frame and arranged onthe outside of an upper toggle clevis consisting of a shank 49 and sidearms 50 arranged on each side of the end of the connecting rod 45. Theshank 49 of the upper toggle clevis is bored to receive loosely thelower end of the upper toggle rod 51 which is threaded on its lower endto receive a stop nut 52. Surrounding this rod above the shank 49 is atension spring 53 surrounding the rod-and forced against the shank 49 byadjusting nut 53 threaded on the rod. The upper toggle rod is stillfurther provided with an elongated collar 54 provided with an enlargedhead 55 for a purpose to be described. The rod is extended upwardlythrough a swivel block 56 provided with trunnions 57 entering suitableopenings in the side arms of the rear port-ion 4 of the head levers Thisblock 56 is provided with rearwardly extending cars 58 receiving a pin59 upon which is mounted hook adapted for engagement under theenlargement 55 when the power mechanism is in olf position, shown inFig. 1, and the head is up. The block 56 slides freely upon the rod sothat the head may move down when the latch is complished by means of aspring 79 anchored in the rod within the casing 76 and engaging a pin 80on a switch frame 81 supported on suitable pivots 82 mounted in thesides of the casin insulated from an carries a conductor bridge 83adapted to close the circuit between two contacts 84 and 85 which are inthe release circuit of the power means, as will appear. It is obviousthat when the rod 73 is moved to the rear of the machine, as shown inFigs. .1 and'4, the sprin 79 will pass the pivot point of the switcframe and cause the bridge member to be withdrawn from en- Y gagementwith the contacts thereby breaking the circuit. The switch frame islimited in its open position by a cross bar 86. When the rod 73 ispulled forward to the position shown in Fig. 4, the spring 79 againstpasses the pivotal point of, this lever and causes the switch to close,closing the circuit to the power means and producing the releaseoperation.

In order to close the circuit to the motor for the pressure producingoperation, the machine is provided with a plunger switch shown in Figs.6 and 7 and comprising a casing 87 secured to the frame of the machineand provided with a switch chamber 88 separated from the frame andspring chamber 89 by a diaphragm orwall 90. The casing is also providedwith a lower bearing 91 and a cap 92 carrying an insulating block 93supporting two contacts 94 and 95 in the pressure applying part of thecircuit of the motor means. These contacts are adapted to be engaged bya contact member or bridge 96 insulated from and mounted'upon a rod 97supported in the bearing 91 and also in a released, but when powerpressure is applied bearing in the insulating block 93. A spring to thework the collar 54 engages the block 56 and the latch becomes engaged.When the power mechanism returns to off position the head is carriedupward through the instrumentality of the latchand remains in thisposition until the latch is disengaged. The latch is causedto-automatically engage the enlargement or head 55 by reason of a spring71 engaging a tail port-ion 72 forming a part of the latch and extendingabove the latch pivot 59.

The latch 60 is released by a controller rod 73 mounted in suitablebearings 74 in the buck support 19. This rod also has bearings 75 in arelease switch casing76 which is secured to the side of the arm 2 of theframe by The rod extends beyond the casing 76 at the rear to a pointwhere it is free to engage a lug 78 extending laterally from the latch60 so that when the rod is pushed back the latch is engaged andreleased, thus releasing the head. In performing this release operation,however, the rod must throw the release switch into the ofi' positionand this is ac 98 surrounds this rod in the spring chamber 89 and bearsagainst a collar 99 secured to the rod and against the underside of thepartition 90 and serves to hold the switch open, as shown in Fig. 6. Therod where it extends beyond the cap 92 is provided with an elongatedclevis 100 carrying a pin 101 passing through a slot 102 in a link 103pivoted at 104 to one of the side arms of the rear portion 4 of the headlever, as shown in Fig. 1. The casing 87 is secured to the frame bymeans of a bracket 105 provided with bolt 76. This switch frame isopenings 106to receive bolts 107 passing into the frame. As the head isfinally seated upon the bed and preferably after its front edge hasengaged the bed, the pin 101 raises the contact bridge member 96sufliciently to enter between the contacts 94 and 95 and the powerproducing circuit is completed. 7

To stop the motor means at the end of the pressure producingoperationand at the end of the opening operation, the machine is provided with asuitable timing switch connected in the electrical circuit and thistimerwill now be described, As illustrated, itcomprises a suitable casing 109provided with a radially and outwardly extending ear 110 having acircumferentially extending slot 111 through which a bolt 112 is screwedinto the machine frame. The elongated slot 111 permits slight adjustmentof the casing 109 around the axis of the shaft 43 at the center of saidcasing, the purpose of said adjustment being readily apparent. Casing109 carries insulating blocks 113, 114 upon which are the upper andlower segments 115 and 116, the ends of said segments being separated bygaps 117. The timing switch casing surrounds the crank shaft 43 whichextends across the frame, and said shaft within the switch casingcarries an insulating block 118 provided with a continuous conductingring 119 to which is electrically connected a swinging contact arm 120whose shoe end is pressed outwardly against the segments 115 and 116 bya suitable spring 121. A third insulating block 122 is also providedwith a post 123 carrying a similar contact arm 124 pressed against thering 119 and electrically connected with the post 123 to which one ofthe line wires is connected. Both of the insulating blocks 113, 114 areadjustable rotatably in the casing 109, for a purpose which will laterappear. Specifically, each of said insulating blocks on its outer facebears against and rests upon a pair of bosses 126 extending inwardlyfrom the casing wall, said bosses having circumferentially extendingslots 127 through which extend clamping bolts 128 for clamping theinsulating blocks to the casing. The circumferentially extending slotsenable the clamping bolts to be loosened up and the insulating blockswith the conducting segments carried thereby to be adjustedcircumferentially of the casing.

Referring to Fig. 9 shaft 43 rotates in the clockwise direction, the arm120 wiping in turn over each segment. The far end of each segment iscurved inwardly, as at 129, so that as the shoe passes beyond the end ofeach contact it is lifted away from its normal path of movement andsuddenly jumps off from one segment, producing a quick break, and thensuddenly engages into ample'electrical contact with the next segment.

The electrical control and the wiring diagram is set forth in Fig. 10,wherein the motor 37 is connected to incoming line wire L with its otherlead 130 branching into two lines, one of which 131 leads to the contact84 and the other of which 132 leads to the contact 94 of the headclosing plunger switch. The other contact 95 of this plunger switch isconnected 134 with the lower segment 116 of the timing switch.

When the press is open and ready for use, the parts are in the positionshown in Fig. 1, with the head latched up by the latch 60. When theoperator has placed a garment upon the bed the control rod 7 3 isshifted rearwardly carrying the spring 79 of the releasing switch fromthe position shown in Fig. 4 to that shown in Fig. 2 and also engagingthe lug 78 of the latch releasing it from the power mechanism with whichit is in engagement and allowing the ,head to settle by gravity towardthe bed, the fluid cylinder and piston governor producing the desiredspeed of closing. As the head approaches the bed the tilted front edgeengages the work and holds it thus relieving the hands of the operatorfor the remainder of the closing operation, which is preferably theperiod required for the actuation of the plunger power pressureproducing switch in the casing 87 shown in Fig. 6. The closing hasproduced the upward movement of this switch by reason of the pin 101being engaged by the end of the slot 102. When this switch is'closed thecircuit is closed through the upper half of the timing device and themotor applies pressure by moving the crank arm 44 and link 45 into therear straight line position from that shown in Fig. 1. Thisstraightening of these members straightens the main toggles at L118 rearof the oress and causes the collar 54 to engage the swivel block 56 andproduce heavy final pressure. In the meantime the shoe 120 has moved offof the segment 115 and thus broken this circuit when the press willstand at rest with pressure upon the work. The production of finalpressure has in the meantime produced the locking of the head lever tothe power mechanism by reason of the latch 60 having engaged underneaththe enlargement 55. When the operator wishes to release the press fromfinal pressure, the rod 73 is pulled forward causing the spring 79 to bemoved toward the po sition shown in Fig. 4, when the switch lever '81will be moved between the contacts 84 and and the opening circuit willbe established through the wire or lead 134 and through the lowercontact segment of the timer which is at that time being engaged by theshoe 120 connected to the line wire L It is obvious that as the headmoves upward the plunger power producing switch in the casing 87 movesto the open position, thus breaking the power producing circuit. Whenthe press is fully open the shoe 120 of the timer moves off of thecontact segment 116 around to the segment 115, thus breaking the openingcircuit and causing the motor means to come to rest. The

latch 60 remains latched and therefore holds the head in open positionagainst the tendency of its over-balancing to close it. The parts remainin this position until the press is ready for another operation.

Let us assume that seventy-five per cent of the pressing operations areautomatic, that 1s, the garment is laid upon the bed and pressed withoutany special attention from the operator. In other words, let us assumethat these automatic operations require no special lay except thestraightening of the this type of operation the machine is especiallyadaptable because, with the tilted head, the

- front edge of the buck moves down, clamps the work in place andpermits the withdrawal of the hands of the operator before the presshead moves into the power applying zone. After the work is clamped theoperator may then attend to the other matters as no further attention isrequired to produce the final pressure. If the lay is particularlydifficult the operator may even grasp the handle on the head as it ismoving down and seat is upon the work as desired without any danger ofthe power mechanism being brought into action. Indeed, the operator mayeven raise the head .by hand to correct or change the lay and therevidedwith downwardly extending brackets 135 extending downwardly at the rearof the head, as shown in Fig. 11. To the lower ends of these bracketsare pivoted side arms 136 of a guard 137 skirting the head andconforming to the shape and extending around the sides or ends of thehead. The side arms extend between pairs of pins 138 and 139 on the endsof the head. The guard is also provided with a handle 140 which may begrasped at any time to arrest the movement of the head. The parts are soarranged that the lower edge of the guard is in horizontal alinementwith the lower front edge of the head when the head is tilted and beforeit is moved into match'd or nesting relation with respect to the bed,but when the front edge of the head engages the bed the pins 138 and 139cause the guard to be moved down past the I meeting edges of the headand bed and produce a guarding action.

When a guard is used in this way it will be seen that it does not extenddown below the entrance to the press when the head is closing or, infact, until the front edge ofthe head engages the bed and starts tosettle into matched pressing relation. This is extremely importantbecause it permits the operator to manipulate the head and the lay untilthe work is grasped by the press, after which the guard moves down andserves to remove the hands of the operator from the pressing members. Ifthe operator should leave her hand between the pressing members, theguard itself would prevent the tilting and settling of the head to theextent of operating the power means thereby avoiding danger to l theoperators hand as well as avoiding the production of an imperfectpressing operation. The operator may grasp the handle 140 at any timeand either raise the headfreely or let it settle upon the-work at anydesired speed.

Having described my invention, I claim:

1. A pressing machine, comprising a substantially stationary pressingmember, a pressing member movable into and out 'of pressing engagementtherewith, means causing the front edge portions of said members toengage prior to the full matched engagement of said members, poweroperated means for producing final pressure between 'said members, andmeans effective only after the engagement of the front edge portions ofsaid pressing members for actuating said power operated means to applyfinal pressure between said members. I

2. A pressing machine, comprising a substantially stationary pressingmember, a pressing member, movable into and out of pressing engagementtherewith, means causing the front edge portions of said pressingmembers to engage prior to the full matched engagement of said members,power operated means for applying final pressure between a said members,means for actuating said power operated means to efi'ect the applicationof final pressure between the pressing members, and a part movable withthe movable pressing member for operating said actuating means, saidpart being effective to operate said actuating means only after theengagement of the front edge portions of said pressing members. I

3. A pressing machine, comprising a sub- I stantially stationarypressing member, a movable pressing member normally tending to move intopressing engagement therewith to thereby close the press, power operatedmeans for moving said movable pressing member out of engagement withsaid stationary memher to thereby open the press, a single means formaintainingsaid press in open condition,

and means for controlling said power operated means and said maintainingmeans.

4. A pressing machine, comprising a substantially stationary pressingmember, a movable pressing member normally tending to move into pressingengagement therewith to thereby close the press, power operated meansfor applying final pressure between said pressing members and for movingthe movable pressing member out of engagement with said stationarypressing member to thereby open the press, latch means for maintainingthe press in open condition and movable with the movable pressingmember, and a single means for controlling said power operated means andsaid latch means.

5. A pressing machine, comprising a relatively stationary pressingmember, a pressing member movable into and out of pressing engagementwith said stationary pressing member, means causing the front edgeportions of said members to engage prior to the full matched engagementof said members, means for. operating said movable pressing members,means for moving said movable pressing member, a guard normallyunobstructing the entrance to the space between said pressing members,and means for moving said guard across said entrance as the pressingmembers move into full matched engagement.

6. A pressing machine, comprising a substantially stationary pressingmember, a pressing memer movable into and out of pressing engagementwith said stationary member, means causing the front edge portions ofsaid members to engage prior to the full matched engagement of saidmembers, means for moving said movable pressing member, a guard movablewith said movablepressing member, means for holding said guard frommoving across the entrance to the space between said pressing memberswhen said members are separated, and connecting means between said guardand the rear portion of the movable pressing members, whereby movementof the movable pressing member into full matched engagement with thestationary pressing member eflt'ects movement of the guard across theentrance to the space between said pressing members.

A pressing machine, comprising a substantially stationary pressingmember, a pressing member movable into and. out of pressing engagementwith said stationary pressing member, means causing the front edgeportions of said pressing members to engage prior to the full matchedengagement of said members, power operated means for efl'ecting finalpressure between said members, control means for actuating said poweroperated means'to effect the application of such final ressure,connecting means between said mova le pressing member and said controlmeans and including a lost motion device which effects a delay in theactuation of said poweroperated means to efi'ect the application offinal pressure between the pressing members until after the engagementof the front edge portions of said pressing members, a

guard adapted for movement across the entrance to the space between saidpressing members, and an operative connection between said guard and themovable pressing member, whereby an obstruction to the moveunent of saidguard prevents the matched engagement of said pressing members and thereby prevents the actuation of the power operated means to eiiect theapplication of the mounted upon said support for tilting movement withrespect thereto so that said head can be tilted into matched engagementwith the bed, means for holding said head separated from said bed, powermeans operatively connected with said support for effecting theapplication of final pressure between said head and said bed and foreffecting movement of said head and said support so as tobring aboutseparation of said head and said bed, and a controller for said powermeans having operative connections with a part movable with said head,said connections including means whereby said power means is onlyeflective to effect the application of final pressure between the headand the bed after said head has been tilted into matched relation withsaid bed.

- 9. A pressing machine, comprising a substantially stationary pressingmember, a movable pressing member normally tending to move into pressingengagement therewith to thereby close the press, power means efiectivelydisconnected from the movable pressing member when the press is opensothat said power means is incapable ofclosing the press, means foroperatively connecting said power means to the movable pressing memberto effect the production of final pressure between the pressing members,means for operatively connecting said power means to the movablepressing member for eifecting opening of the press, means for holdingthe press open, and a controller for said power means, said controllerbein movable for contact with and for actuation o the means for holdingthe press open, whereby the movable pressing member may be released forengagement with the stationary pressing member.

In testimony whereof I hereby afiix my signature.

BLUFORD W. BROCKETT.

I CERTIFICATE or commotion- Patent No. 1,744,441. Granted January 21,195 0, to

' BLUFORD w. BROCKETI. I

It is hereby certified that error appears in the printed specification"of the above numbered patent requiring correction as follows: Page 2,line 33, for the a word "hand" read "head"; page 3, line '84, for"against" read "again"; page 5, A line 30, for "is" second occurrenceread "it"; same page, line 129, claim 3,

strike out the word "single" and insert'the same before the word "means"in line 1, page 6, same claim; and-that thesaid Letters Patent should beread with these corrections therein that the same may conform to therecord of the case in the Patent Office. a I 1 Signedand sealed this13th day of May, A. .D. 1930.

M. i J. Moore,

(Seal) I J Acting Commissioner of Patents. I I

